WHAT THE HECK ARE MUTTON CHOPS?
Mutton chops are essentially a beard with the chin and mustache shaved.
So, they’re basically sideburns?
Yes, mutton chops are basically sideburns, but instead of being trimmed straight down along the side of the face, they’re allowed to grow further onto the cheeks to the edge of the mouth. The result is two large sideburns that resemble chops of mutton (sheep).
In other words, mutton chops are the meatier version of standard sideburns.
Source: www.beardbrand.com